Bolle Kassia Sunglasses, Medium, Polarized Offshore Blue Oleo AR, Shiny White They are light yet offer good shock resistance Eliminates glare from water or road surfaces ensuring purity of vision With a visible light transmission of 10 percent , they are ideal for sunny environments 8 base. Offers better periphery vision Hydrophobic Coating - similar to a wax Coating on a car, it helps to shed water droplets and Grease Marks keeping your lenses clearer and Cleaner for longer